Which structural feature of guard cells facilitates their function in stomatal regulation MOST effectively?
Uniformly thickened cell walls.
Radially oriented cellulose microfibrils in the cell walls.
Large central vacuole for water storage.
Presence of chloroplasts for photosynthesis.
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Petiole
Helps to hold the leaf blade
Allows leaf blades to flutter wind
Helps in cooling the leaf
All of the above
